What is a Microinverter?
Before learning about some of the best microinverters on the market, it is useful to know what a microinverter actually does. A microinverter turns direct current (DC), generated by your solar panels, into alternating current (AC) which can be used by your home.
Microinverters differ from standard inverters, or “string inverters”, because microinverters are smaller and are placed on the back of each solar panel. In contrast, string inverters with optimizers (such as SolarEdge) connect one central inverter to every solar panel. This means that if the inverter goes out, none of the panels will produce electricity unless the inverter is replaced.
For this reason, microinverters are generally preferred since individual units can be replaced without compromising the entire system. Microinverters also provide the advantage of being able to monitor the production of each individual panel and make expanding the system easier in the future.